CN102124813A - Hierarchical clustering framework for inter-cell MIMO systems - Google Patents
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Abstract
A method for wireless communications is provided. The method includes forming a first set of wireless components into a master cluster that provides upper level service functionality to a subset of user devices. The method includes forming a second set of wireless components into a nested cluster that is associated with the master cluster, wherein the nested cluster provides data transfer to and from the subset of user devices.
Description
Require priority according to 35U.S.C. § 119
That the application requires is that submit on August 15th, 2008, name is called the U.S. Provisional Patent Application No.61/089 of " HIERARCHICALCLUSTERING FRAMEWORK FOR INTER-CELL MIMO SYSTEMS ", 435 priority is incorporated the full content of above-mentioned application into the application with way of reference.
Technical field
Put it briefly, following description relates to wireless communication system, more particularly, relates in order to optimize the branch level clustering technique of performance in wireless network.
Background technology
For the various types of Content of Communication such as speech, data or the like are provided, widespread deployment wireless communication system.These systems are can be by sharing the multi-address system that free system resources (for example, bandwidth and transmitting power) and a plurality of users communicate.The example of this class multi-address system comprises code division multiple access (CDMA) system, time division multiple access (TDMA) system, frequency division multiple access (FDMA) system, 3GPP Long Term Evolution (LTE) system that comprises E-UTRA and OFDM (OFDMA) system etc.
OFDM (OFDM) communication system is divided into a plurality of (N with whole system bandwidths effectively
F) subcarrier, these subcarriers are also referred to as frequency subchannels, tone (tone) or frequency band (frequencybin).For ofdm system, at first the data (being information bit) that will send are encoded to generate coded-bit with specific encoding scheme, bit after will encoding then further is grouped into " many bits " symbol, then " many bits " sign map is become modulation symbol.Each modulation symbol is corresponding to a point on the signal constellation which, and wherein, signal constellation which is to be defined by the certain modulation schemes that is used for transfer of data (for example, M-PSK or M-QAM).Each time interval at N
FSend modulation symbol in the individual frequency sub-carrier each, wherein, the time interval is the bandwidth that depends on each frequency sub-carrier.Therefore, OFDM can be used to resist the intersymbol interference (ISI) that is caused by frequency selective fading, and being characterized as of frequency selective fading has different attenuations on system bandwidth.
Generally speaking, wireless multiple-access communication system supports a plurality of wireless terminals to communicate by the transmission on forward link and the reverse link and one or more base station simultaneously.Forward link (or down link) refers to the communication link from the base station to the terminal, and reverse link (or up link) refers to the communication link from terminal to base station.Can export (SISO) system, many input-list outputs (MISO) or many inputs-how output (MIMO) systems set up this communication link by single input-list.
Multiple-input and multiple-output (MIMO) technology (promptly using a plurality of transmission plans that transmit and receive antenna) has improved the user performance in the cellular system greatly.Traditionally, the MIMO technology limiting is in the antenna that adopts on the same cells website.Recently, paid close attention to get up from the aerial integration of different districts website therein to create the system of minizone mimo system.This has caused this problem of cooperative groups (cooperation set) which sub-district that determine to select in the network is elected given user as.
Summary of the invention
Provide a concise and to the point general introduction below, so that the basic comprehension to aspects more of the present invention to be provided.This general introduction is not a summary general, is not intended to identify key/critical elements or describe scope of the present invention yet.Its purpose only is to provide some notions with the form of simplifying, with as the preamble in greater detail that hereinafter provides.
System and method provides the multistage cluster of wireless module so that help more high performance service to subscriber equipment.In one aspect, provide the branch level of base station (or the base station equipment such as antenna) is arranged (hierarchical arrangement), wherein, the top layer in level is safeguarded cooperation by station that is called main cluster or assembly.Main cluster is used to handle the systemic-function of higher level, for example to the scheduling of the subclass of selected user equipment.One or more nested clusters submit to main cluster, and nested cluster is carried out more direct or more high performance aspect, and for example the high-speed bidirectional data between subscriber equipment and the nested cluster transmit.In this way will such as the high layer function the scheduling and such as data transmit special function be divided into two functions, systematic function is improved.
Main cluster is static arrangement normally, so that provide scheduling or other service to the subscriber equipment subclass.The layout of nested cluster can be along with change (for example, detected by the network parameter) dynamic change in time of network system situation.What nested cluster can also transmit any kind basically is not the data of being responsible for by main cluster usually, and wherein, such data can comprise it not being that message or other network by main cluster is handled shaken hands usually.Except main cluster/nested cluster arrangement, other minute level arrange it also is possible.For example, can provide multistage nested to layer, wherein, nested cluster is as the main cluster of another nested cluster, and is like that.
In order to realize aforementioned with relevant purpose, the application is in conjunction with hereinafter description and accompanying drawing have been described some illustrative aspect.But these aspects only are some distinct methods that explanation can be used basic principle of the present invention, and the present invention is intended to comprise all these aspects and equivalent thereof.When the detailed description considered in conjunction with the accompanying drawings hereinafter, other advantage of the present invention and novel feature will become apparent.
Description of drawings
Fig. 1 is used to the high-level block diagram that wireless communication system provides branch level cluster operated system.
Fig. 2-4 shows the network diagram of the example master's cluster and the nested cluster of wireless system.
Fig. 5 is the flow chart that the branch level cluster of wireless communication system is handled.
Fig. 6 shows example wireless system.
Fig. 7 shows and is used for the exemplary logic that another kind of cluster is handled.
Fig. 8 shows the example communication device that adopts automated cluster to handle.
Fig. 9 shows multi-address radio communication system.
Figure 10 and 11 shows example communication system.
Embodiment
The invention provides the system and method that helps capabilities of user devices in the wireless communication system.In one aspect, provide and be used for method of wireless communication.This method comprises forms main cluster with first group of wireless module, and this main cluster provides the top service function to the subscriber equipment subclass.This method comprises forms the nested cluster that is associated with main cluster with second group of wireless module, and wherein, this nested cluster provides and mails to and from the data transmission of subscriber equipment subclass.This method can comprise the cluster of other at least one group of wireless module being formed other nested cluster (for example, the nested cluster in another nested cluster) control by at least one.Above-mentioned top service function can be relevant with scheduling feature.Second group of wireless module forming first group of wireless module of main cluster or form nested cluster can be selected from one group of base station or the antenna subset related with these base stations.
It should be noted that in the described one or more example embodiment of the application, described function can be used hardware, software, firmware, or their any combination realizes.If realize in software, these functions can be used as one or more instruction or code storage on computer-readable medium or transmit.Computer-readable medium comprises computer-readable storage medium and communication media, and communication media comprises any medium of being convenient to computer program is transferred to from a place another place.Storage medium can be any usable medium of computer-accessible.For example, but be not to make restriction, computer-readable medium can comprise RAM, ROM, EEPROM, CD-ROM or other disk storage, magnetic disc store or other magnetic storage apparatus, and maybe can be used for carrying or store needed program code with the form of instruction or data structure also can be by any other medium of computer access.In addition, any connection also all can suitably be known as computer-readable medium.For example, if software be to use coaxial cable, fiber optic cables, twisted-pair feeder, Digital Subscriber Line or the wireless technology such as infrared, radio and microwave from the website, server or the transmission of other remote source, then coaxial cable, fiber optic cables, twisted-pair feeder, DSL or the wireless technology such as infrared, radio and microwave are also contained in the definition of medium.Used disk and CD among the application comprises compact disk (CD), laser disk, CD, digital multi-purpose CD (DVD), floppy disc and Blu-ray Disc, and wherein, disk is copy data magnetically usually, and CD then comes copy data optically with laser.Above-mentioned combination also should be included in the scope of computer-readable medium.
Referring now to Fig. 1, system 100 provides the operation of branch level cluster for wireless communication system.System 100 comprises one or more cluster of base stations 120,124 (it is also referred to as node, evolved Node B-eNB, femto station, station or the like slightly), and cluster of base stations can be the entity that can communicate by wireless network 110 and second equipment 130 (or a plurality of equipment).Each cluster 124 that is called the cluster 120 of main cluster and is called nested cluster all comprises two or more co-operating base stations, and all the gathering or the set of base stations are called branch level cluster 128.It should be noted that terminology used here " cluster (cluster) " refers to one group of wireless module that wireless service is provided by cooperation.This can comprise the cooperation of base station and/or antenna.These antenna can be from single base station or from a plurality of stations/and cluster obtains between a plurality of stations.
Each equipment 130 (or subset of devices) can be access terminal (be also referred to as terminal, subscriber equipment, stand or mobile device).Cluster of base stations 120 or 124 sends to equipment 130 by down link 140, and receives data by up link 150.For up link and this appointment of down link is arbitrarily, because equipment 130 also can send data and receive data by uplink channel by down link.It should be noted, though show three assemblies 120,124 and 130, also can adopt the assembly more than three on network 110, these extra assemblies also go for wireless processing and the cluster operation described in the application.
Divide 128 controls of level cluster two-layer at least communication, it is illustrated as scheduling or upper-layer functionality 160 and high-speed data transfer 164.Generally speaking, main cluster 120 is responsible for scheduling feature 160 and is adopted one or more main cluster assemblies 170 to come operation dispatching.Need not to be concerned about scheduling and other problem, nested cluster 124 can be carried out high-speed data transfer 164 by one or more nest set group part 174.By distributing responsibility by this way between main cluster and nested cluster, network performance is improved.
Generally speaking, multiple-input and multiple-output (MIMO) technology (promptly using a plurality of transmission plans that transmit and receive antenna) has improved the user performance in the cellular system greatly.Traditionally, the MIMO technology limiting is in the antenna that adopts on the same cells website.Recently, paid close attention to again will get up from the aerial integration of different districts website therein to create the system of minizone mimo system.
In one aspect, provide and be used for aggregation cell (comprising) so that create the systematic method of cluster from the different districts website.In one example, cluster is one group of sub-district of realizing minizone MIMO by cooperation.Can realize using the secondary cluster scheme of the nested cluster 124 in main cluster 120 and this main cluster, but as previously mentioned, multistage cluster also is possible (for example, the nested cluster in other nested cluster).
Typically, all sub-districts in the network 110 all are divided in the main cluster 120.Thereby main cluster 120 is set of different districts in the network 110.Each main cluster 120 has its oneself scheduler, does not generally cooperate in the sub-district that therefore belongs to different main clusters.Nested cluster 124 is the subset of cells that belong to main cluster 120, and wherein, sub-district can be the member more than a nested cluster.When subscriber equipment 130 was dispatched by main cluster 120, it is nested cluster 124 for the user distributes, and this nested cluster will be this user's service during scheduling decision.Therefore, in order to realize the MIMO transmission of user k, share packet and the channel condition information (CSI) of user k all sub-districts of distributing in this nested cluster of user k.This on the back haul link that connects the different districts website, carry out to the sharing of data and CSI, the delay and the capacity of back haul link applied constraint.It should be noted that in this framework main cluster 120 is normally static, that is to say, in case carried out regulation then can not change usually.But it is dynamic that this of activation organized nested cluster 124, that is to say that they depend on the decision-making of scheduler, and changes on time and frequency or according to detected network parameter.
Typically, nested cluster 124 is made up of one to three sub-district, and this is to be difficult to remain on the constraint of the round-trip delay on all sub-districts in this nested cluster because the increase of the size of nested cluster can make.In addition, when the nested cluster service that is of a size of three, most of users can experience enough performances and improve.Main cluster 120 can be made up of a large amount of sub-districts usually, and this is to be in the possibility that also therefore can participate in the main cluster in the MIMO transmission because bigger main cluster increases user's main interference source.Bigger main cluster 120 also provides the stronger flexibility that is chosen in which user of scheduling on the resource for scheduler.Because for MIMO transmission, the user divided into groups to make all degrees of freedom all are fully utilized in the system, so this flexibility in the lighter system of load of great use.In the discussion of Fig. 2-4, provide the example of various minutes level cluster frameworks below.But, will be appreciated that the notion of the branch level cluster described in the application is not limited in these examples.
Also scheduling decision can be divided in a plurality of assemblies, wherein, some assemblies are carried out by main cluster, and some are undertaken by nested cluster.In one form, main cluster can be by making rough scheduling decision for the mode of different nested clusters user equipment allocation.Can in each nested cluster, make such as at the beam direction of particular UE, the meticulousr scheduling decision the packet format.
Before the continuation, it should be noted, system 100 can be with accessing terminal or mobile device adopts, and for example, it can be module, computer (comprising on knee, desktop type, PDA(Personal Digital Assistant)), mobile phone, the smart phone such as SD card, network interface card, wireless network card or any other the suitable terminal that can be used for accesses network.Terminal visits network by inserting the assembly (not shown).In one example, terminal and the connection that inserts between the assembly can be wireless character, and wherein, inserting assembly can be the base station, and mobile device is a wireless terminal.For example, terminal and base station can communicate by any suitable wireless protocols, and this agreement is including but not limited to time division multiple access (TDMA), code division multiple access (CDMA), frequency division multiple access (FDMA), OFDM (OFDM), FLASH OFDM, OFDM (OFDMA) or any other suitable agreement.
Inserting assembly can be the access node that is associated with cable network or wireless network.For this purpose, for example, inserting assembly can be router, switch or the like.Inserting assembly can comprise and be used for one or more interfaces (for example, communication module) of communicating with other network node.In addition, the access assembly can be the base station (or WAP (wireless access point)) in the cellular type network, and wherein, base station (or WAP (wireless access point)) is used for providing the overlay area to a plurality of users.Can be arranged so that provide continuous overlay area these base stations (or WAP (wireless access point)) to one or more cell phones and/or other wireless terminal.
Referring now to Fig. 2, show the example of the main cluster of wireless system.In this example, show four main cluster 200-230, wherein, each cluster is visually made a distinction by different shades and reticulate pattern.In this example, main cluster 210-230 is made up of 4 cell sites, and each website wherein has 9 sub-districts.It should be understood that other layout also has the sub-district number and/or the main cluster number of the cell site of different numbers, every website.
Forward Fig. 3 to, show the example of nested cluster.In this example, show two nested clusters 300 and 310, wherein, different shades and reticulate pattern visually show the exemplary cooperation between this medium and small district of nested cluster.As shown in the figure, two kinds of possible layouts 300 and 310 four nested clusters having stipulated in the given main cluster.Each gray shade or reticulate pattern are represented a nested cluster.According to will being with which user of scheduling, can select a kind of in 300 or 310 of two kinds of configurations by the scheduler of main cluster.The nested arrangement that will be appreciated that other also is possible.
With reference to Fig. 4, show the another kind of exemplary arrangement of main cluster.In the example in front, main cluster is made up of 9 sub-districts.Exemplary arrangement 400 shows a kind of splitting scheme, and wherein, main cluster is made up of 7 cell sites, and each website has 21 sectors.As mentioned above, one of advantage of selecting bigger main cluster is that the number of users of cluster edge is minimized, and that is to say, user's strong interferers is more likely within main cluster.But the increase of main cluster size can cause more complicated scheduler.As mentioned above, other master and/or nested arrangement also are possible.
Referring now to Fig. 5, show the wireless communications method 500 that is used for cluster and wireless optimization.Though explain simply in order to make, with the form of a series of actions illustrate and describe these methods (with the application described in other method), but what need be appreciated and understood that is, these methods are not limited to such sequence of movement, because according to one or more aspects, certain methods can different order occur and/or with shown in the application and describe other move concurrent appearance.For example, it should be appreciated by those skilled in the art and understand that method can be represented with the state that is mutually related in a series of for example state diagrams or the form of incident alternatively.In addition, not all action that illustrates all will be used to realize the method consistent with the present invention.Generally speaking, processing procedure 300 can be implemented as the automatic switchover control that is used to support described in the application and processor instruction, programming in logic function or other E-serial of parameter optimization.
Proceed to 510 of Fig. 5, transmission network parameter between base-station node, wireless module such as antenna and subscriber equipment.These parameters can relate to resource, signal(l)ing condition, service request and other factors described above.At 520 places, form one or more main clusters.As previously mentioned, these clusters can comprise each cell site of being made up of each sub-district.Main cluster is static arrangement normally, but dynamic arrangements also is possible.At 530 places, form one or more nested clusters, wherein, each nested cluster is associated with the one or more main cluster that constitutes at 520 places or controlled by it.As previously mentioned, for example, can dynamically create nested cluster and adjust according to detected network condition (for example deriving) from network parameter or subscriber equipment feedback.At 540 places, carry out upper-layer functionality by main cluster.Upper-layer functionality generally includes scheduling or other and can't help the management that nested cluster carries out.At 550 places, nested cluster is carried out the high-speed data transfer between nested cluster and the subscriber equipment subclass.Because nested cluster is scheduling and other expense not, so they can reportedly send with more effective mode and subscriber equipment actual figure.
Technical finesse described in the application can be realized by different modules.For example, the technology described in the application can realize with hardware, software or both any combinations.Realize that for hardware processing unit can be realized in being designed for one or more application-specific integrated circuit (ASIC)s (ASIC) of carrying out the described function of the application, digital signal processor (DSP), digital signal processor spare (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, other electronic unit or above-mentioned combination.Realize for software, can realize by the module (for example, program, function or the like) that is used to carry out the function described in the application.Software code can be stored in the memory cell and by processor and carry out.
Fig. 6 shows the example communication system that can dispose access point base station in network environment.As shown in Figure 6, system 600 comprises a plurality of access point base station, perhaps as an alternative, Femto cell or family expenses Node B unit (HNB), for example, such as HNB 610, wherein each HNB is installed in the corresponding small area network environment, for example, in the dwelling house 630 such as one or more users, and be used for association and external subscriber equipment (UE) 620 is served.Each HNB 610 also couples mutually with the Internet 640, and couples mutually with mobile operator core net 650 by DSL router (not shown) or cable modem (not shown).
Forward Fig. 7 now to, provide to relate to the system that wireless signal is handled.With this system representation is a series of functional blocks that are mutually related, and these functional block representatives are by processor, software, hardware, firmware or the above-mentioned any suitable function that combination realized.
With reference to Fig. 7, provide wireless communication system 700.This system 700 comprises logic module 702 or the module that is used to control one group of master's cluster.This system comprises and is used to select one group to organize the logic module 704 or the module of the nested cluster of main cluster in response to this.This system also comprises logic module 706 or the module that is used for to subscriber equipment subclass transmitting scheduling information and data.System 700 can comprise at least one nested cluster of other the nest set group control by at least one.
In yet another aspect, provide a kind of method of wireless communication that is used for.This method comprises: first group of wireless module formed main cluster, and this main cluster provides the top service function to the subscriber equipment subclass; Second group of wireless module formed the nested cluster that is associated with main cluster, and wherein, this nested cluster provides and mails to and from the data transmission of subscriber equipment subclass.This method comprises the cluster of other at least one group of wireless module composition by at least one other nest set group control.Above-mentioned top service function is relevant with scheduling feature.This method comprises: second group of wireless module forming first group of wireless module of main cluster or form nested cluster can be selected from one group of base station or the antenna subset related with these base stations.
This method comprises the processing network parameter, network parameter comprises time parameter, frequency parameter, resource allocation parameters, disturbance regime parameter, signal strength parameter, signal quality parameter, QoS parameter or signal to noise ratio (snr) parameter, and these network parameters are used for determining nested cluster.This method comprises that the configuration network cluster also dynamically disposes nested cluster statically.This method comprises main cluster is consisted of one group of cell site that this group cell site is associated with one group of sub-district of each website.In one aspect, the number of cell site be 3 and the number of cells of each website be 9.In yet another aspect, the number of cell site be 7 and the number of cells of each website be 21.This method comprises assigns the nested cluster that is used for serving the subscriber equipment subclass during scheduling decision, wherein, and this subscriber equipment subclass packets of shared data and channel condition information.These packets are shared on the back haul link that is connected the different districts website with channel condition information.
In yet another aspect, provide a kind of communicator.This device comprises: memory, this memory is preserved the instruction that is used to form main cluster, wherein main cluster is used for providing scheduling feature to the subscriber equipment subclass, and the instruction that is used to form the nested cluster that is associated with this main cluster, wherein nested cluster is used to provide and mails to and transmit from the data of subscriber equipment subclass; And the processor of carrying out above-mentioned instruction.This device comprises the instruction that is used to form at least one other cluster, and wherein this at least one other cluster is by another nest set group control at least.Main cluster and nested cluster are to select from one group of base station or the antenna subset related with these base stations.This device comprises network parameter, this network parameter comprises time parameter, frequency parameter, resource allocation parameters, disturbance regime parameter, signal strength parameter, signal quality parameter, QoS parameter or signal to noise ratio (snr) parameter, and these network parameters are used for determining nested cluster.This device comprises and disposes main cluster statically or dynamically dispose nested cluster.This device comprises assigns the nested cluster that is used for serving the subscriber equipment subclass during scheduling decision, wherein, and this subscriber equipment subclass packets of shared data and channel condition information.These packets are shared on the back haul link that is connected the different districts website with channel condition information.
In yet another aspect, provide a kind of computer program.This computer program comprises computer-readable medium, and this computer-readable medium comprises the code that is used to manage switching, and these codes comprise: be used to make computer to select the code of one group of master's cluster; Be used to make the code of one group of nested cluster of Computer Processing, wherein these nested clusters are organized main cluster control by this; Be used to make computer by first communication channel to subscriber equipment subclass schedule information and the code that provides data to transmit to the subscriber equipment subclass by second data channel.This code comprises and is used to make Computer Processing one set of network parameters so that dynamically determine the code of nested cluster.In yet another aspect, this comprises according to the subscriber equipment that will dispatch or according to the configuration in nested cluster past and dynamically disposes nested cluster.This comprises main cluster is consisted of one group of cell site, and wherein these cell sites are associated with one group of sub-district of each website, and wherein, the number of cell site is 3, and the number of cells of each website is 9.In yet another aspect, the number of cell site is 7, and the number of cells of each website is 21.This comprises assigns the nested cluster that is used for serving the subscriber equipment subclass during scheduling decision.This also comprises the sub-district of packets of shared data and channel condition information.Shared on the back haul link of above-mentioned packet and the different cell sites of channel condition information in being connected one or more main clusters.This comprises the main cluster that is used to limit the subscriber equipment feedback of going to the nest set group subset.
Fig. 8 shows communicator 800, and for example, this communicator can be the radio communication device such as wireless terminal.In addition or as a replacement, communicator 800 can be in the cable network.Communicator 800 can comprise memory 802, and memory 802 is preserved the instruction that is used for carrying out at wireless communication terminal signal analysis.In addition, communicator 800 can comprise processor 804, processor 804 in can execute store 802 instruction and/or the instruction that receives from another network equipment, wherein, these instructions can relate to communicator 800 or related communication device are configured and operate.
With reference to Fig. 9, show multi-address radio communication system 900.Multi-address radio communication system 900 comprises a plurality of sub-districts, comprises sub-district 902,904 and 906.Aspect of system 900, sub-district 902,904 and 906 can comprise Node B, and this Node B comprises a plurality of sectors.These a plurality of sectors can be made of antenna sets, and the UE that each antenna is responsible in the part with the sub-district communicates by letter.For example, in sub-district 902, each antenna sets 912,914 can be corresponding to different sectors with 916.In sub-district 904, each antenna sets 918,920 with 922 corresponding to different sectors.In sub-district 906, each antenna sets 924,926 with 928 corresponding to different sectors.Sub-district 902,904 and 906 comprises a plurality of Wireless Telecom Equipments (for example, subscriber equipment or UE), Wireless Telecom Equipment can with one or more sector communication of each sub-district 902,904 and 906.For example, UE 930 can communicate by letter with Node B 942 with 932, and UE 934 can communicate by letter with Node B 944 with 936, and UE 938 can communicate by letter with Node B 946 with 940.
Referring now to Figure 10, show multi-address radio communication system according to an aspect.Access point 1000 (AP) comprises a plurality of antenna sets, and a group comprises 1004 and 1006, and another group comprises 1008 and 1010, and the another one group comprises 1012 and 1014.In Figure 10, though only for each antenna sets shows two antennas,, more or less antenna can be adopted in every group.1016 (AT) that access terminal communicate by letter with 1014 with antenna 1012, wherein, antenna 1012 and 1014 by forward link 1020 to the 1016 transmission information that access terminal, and by reverse link 1018 from the 1016 reception information that access terminal.Access terminal and 1022 communicate by letter with 1008 with antenna 1006, wherein, antenna 1006 and 1008 by forward link 1026 to the 1022 transmission information that access terminal, and by reverse link 1024 from the 1022 reception information that access terminal.In the FDD system, communication link 1018,1020,1024 and 1026 can use different frequencies to communicate.For example, forward link 1020 can use and reverse link 1018 employed different frequencies.
Every group of antenna and/or its be designed for signal post the zone often be called the sector of access point.Each antenna sets is designed to accessing terminal in the sector with 1000 overlay areas of access point and communicates.In the process that communicates by forward link 1020 and 1026, the transmitting antenna of access point 1000 can utilize beam shaping to improve the access terminal signal to noise ratio of 1016 and 1024 forward link of difference.In addition, access point adopts beam shaping accessing terminal of random distribution in the overlay area to send, and this compares access point, and accessing terminal of it sends to all by individual antenna, and be littler to the interference that accessing terminal in the neighbor cell caused.Access point can be the fixed station that is used for terminal communication, and it also can be called access point, Node B or certain other term.Access terminal to be called and access terminal, subscriber equipment (UE), Wireless Telecom Equipment, terminal, access terminal or certain other term.
With reference to Figure 11, system 1100 shows transmitter system 210 (being also referred to as access point) and the receiver system 1150 (be also referred to as and access terminal) in the mimo system 1100.At transmitter system 1110 places, provide the business datum of a plurality of data flow to emission (TX) data processor 1114 from data source 1112.Each data flow is launched by corresponding transmitting antenna.TX data processor 1114 formats, encodes and interweave this business data flow, so that coded data is provided according to being the selected specific coding scheme of each data flow.
Can carry out the coded data and the pilot data of each data flow multiplexing with OFDM (OFDM) technology.The known data patterns that pilot data is normally handled in a known manner, and it can be used to estimate channel response at the receiver system place.According to the certain modulation schemes of selecting for each data flow (such as, BPSK, QPSK, M-PSK or M-QAM), pilot tone and coded data after this data flow multiplexing are modulated (that is, sign map), so that modulation symbol to be provided.Can utilize data rate, coding and the modulation of determining each data flow by processor 1130 performed instructions.
Then, the modulation symbol of all data flow is offered TX MIMO processor 1120, TXMIMO processor 1120 can further handle modulation symbol (such as, at OFDM).Then, TX MIMO processor 1120 provides NT stream of modulation symbols to NT transmitter (TMTR) 1122a to 1122t.In certain embodiments, the symbol of 1120 pairs of data flow of TX MIMO processor applies the beam shaping weight with the antenna that will launch this symbol.
Each transmitter 1122 receives and handles symbols streams separately, so that one or more analog signals to be provided, the step of going forward side by side joint (such as, amplification, filtering and up-conversion) analog signal, so that the modulation signal that is adapted to pass through the mimo channel transmission to be provided.Launch to 1124t from NT antenna 1124a respectively to NT the modulation signal of 1122t from transmitter 1122a.
At receiver system 1150 places, the modulation signal of being launched is received to 1152r by NR antenna 1152a, will offer separately receiver (RCVR) 1154a from the signal that each antenna 1152 receives respectively to 1154r.Each receiver 1154 regulate (such as, filtering, amplification and down-conversion) signal that receives separately, signal digitalized so that sampling to be provided with after regulating, and further handle sampling so that corresponding " reception " symbols streams to be provided.
At transmitter system 1110 places, modulation signal from receiver system 1150 is received by antenna 1124, is regulated by receiver 1122, by demodulator 1140 demodulation, and by 1142 processing of RX data processor, to extract the reverse link message that receiver system 1150 is launched.Then, which kind of pre-coding matrix processor 1130 determines to adopt determine the beam shaping weight, handles the message of being extracted then.
In one aspect, logic channel is categorized as control channel and Traffic Channel.Logical control channel comprises Broadcast Control Channel (BCCH), just is used for the DL channel of broadcast system control information.Paging Control Channel (PCCH) is the DL channel that transmits paging information.Multicast control channel (MCCH) is to be used to send at the multimedia broadcasting of one or more MTCH and the point-to-multipoint DL channel of multicast services (MBMS) scheduling and control information.Generally speaking, after setting up the RRC connection, only (annotate: UE old MCCH+MSCH) uses this channel by receiving MBMS.Dedicated Control Channel (DCCH) is the point-to-point two-way channel of launching dedicated control information and being used by the UE with RRC connection.The logic business channel comprises Dedicated Traffic Channel (DTCH), and it is the point-to-point two-way channel that is exclusively used in the transmission user profile of a UE.In addition, the multicast control channel of point-to-multipoint DL channel (MTCH) is used for the transmitting business data.
Transmission channel is categorized as DL and UL.The DL transmission channel comprises broadcast channel (BCH), downlink shared data channel (DL-SDCH) and calling channel (PCH), PCH is used to support UE economize on electricity (indicating DRX cycle to UE by network), it broadcasts and is mapped to the PHY resource in whole sub-district, wherein, these PHY resources also can be used for other control/Traffic Channel.The UL transmission channel comprises Random Access Channel (RACH), request channel (REQCH), up link shared data channel (UL-SDCH) and a plurality of PHY channel.These PHY channels comprise one group of DL channel and UL channel.
DL PHY channel comprises: for example, and Common Pilot Channel (CPICH), synchronizing channel (SCH), Common Control Channel (CCCH), shared DL control channel (SDCCH), multicast control channel (MCCH), shared UL allocated channel (SUACH), acknowledgement channel (ACKCH), DL physics shared data channel (DL-PSDCH), UL power control channel (UPCCH), indicator channel (PICH) and load designator channel (LICH).
UL PHY channel comprises: for example, and Physical Random Access Channel (PRACH), channel quality indicator (CQICH), acknowledgement channel (ACKCH), antenna subset indicator channel (ASICH), sharing request channel (SREQCH), UL physics shared data channel (UL-PSDCH) and broadband pilot channel (BPICH).
Other term/assembly comprises: the 3G third generation, 3GPP third generation partner program, the ACLR side channel leaks ratio, ACPR faces the channel power ratio, the ACS adjacent-channel selectivity, ADS high-level design system, the AMC adaptive modulation and coding, the extra maximum power of A-MPR reduces, the automatic repeat requests of ARQ, the BCCH Broadcast Control Channel, the BTS base station transceiver, the CDD cyclic delay diversity, the CCDF CCDF, the CDMA code division multiple access, CFI control format designator, Co-MIMO collaboration type MIMO, the CP Cyclic Prefix, the CPICH Common Pilot Channel, the CPRI common public radio interface, the CQI CQI, the CRC cyclic redundancy check (CRC), DCI down link control designator, the DFT discrete Fourier transform, the OFDM of DFT-SOFDM discrete Fourier transform expansion, DL down link (base station is to user's transmission), the DL-SCH downlink sharied signal channel, the D-PHY500Mbps physical layer, the DSP Digital Signal Processing, DT developing instrument group, the signal analysis of DVSA digital vector, the EDA electric design automation, the E-DCH enhancement type special channel, the evolved UMTS Terrestrial radio access network of E-UTRAN, eMBMS evolution type multimedia broadcast multicast services, the evolved Node B of eNB, the EPC Evolved Packet Core, the every Resource Unit energy of EPRE, ETSI ETSI, the evolved UTRA of E-UTRA, the evolved UTRAN of E-UTRAN, EVM error vector magnitude and FDD Frequency Division Duplexing (FDD).
Other term comprises: the FFT fast Fourier transform, FRC fixed reference channel, FS1 frame structure Class1, FS2 frame structure type 2, the GSM global system for mobile communications, HARQ mixes automatic repeat requests, the HDL hardware description language, HI HARQ designator, the HSDPA high-speed downlink packet inserts, the HSPA high-speed packet inserts, the HSUPA High Speed Uplink Packet inserts, the contrary FFT of IFFT, the IOT HIST, the IP Internet protocol, the LO local oscillator, the LTE Long Term Evolution, the MAC medium access control, the MBMS multimedia broadcast multicast services, MBSFN unifrequency network multicast/broadcasting, the MCH multicast channel, the MIMO multiple-input and multiple-output, MISO imports single output more, the MME Mobility Management Entity, the MOP peak power output, the MPR maximum power reduces, the MU-MIMO multiuser MIMO, the NAS Non-Access Stratum, OBSAI Open Base Station Architecture interface, the OFDM OFDM, the OFDMA OFDM, the PAPR peak-to-average power ratio, the PAR peak-to-average force ratio, the PBCH Physical Broadcast Channel, the P-CCPCH Primary Common Control Physical Channel, the PCFICH physical control format indicator channel, the PCH paging channel, the PDCCH physical downlink control channel, the PDCP PDCP, the PDSCH physical down link sharing channel, PHICH physical mixed ARQ indicator channel, the PHY physical layer, the PRACH Physical Random Access Channel, PMCH physics multicast channel, the PMI precoding matrix indicators, the P-SCH master sync signal, the PUCCH physical uplink control channel, PUSCH physical uplink link sharing channel.
Other term comprises: the QAM quadrature amplitude modulation, the QPSK Quadrature Phase Shift Keying, the RACH Random Access Channel, the RAT wireless access technology, the RB Resource Block, the RF radio frequency, RFDE RF design environment, the control of RLC Radio Link, RMC reference measure channel, the RNC radio network controller, the control of RRC Radio Resource, the RRM RRM, the RS reference signal, the RSCP received signal code power, the RSRP Reference Signal Received Power, the RSRQ Reference Signal Received Quality, RSSI received signal strength indicator, the SAE system architecture evolution, the SAP Service Access Point, the SC-FDMA single-carrier frequency division multiple access, SFBC space-frequency block encoding, the S-GW gateway, the many outputs of the single input of SIMO, the single output of the single input of SISO, the SNR signal to noise ratio, the SRS detection reference signal, the S-SCH auxiliary synchronous signal, the SU-MIMO Single User MIMO, the TDD time division duplex, the TDMA time division multiple access, the TR technical report, the TrCH transmission channel, the TS technical specification, the TTA Telecommunications Technology Association, the TTI Transmission Time Interval, UCI up link control designator, the UE subscriber equipment, UL up link (user is to the transmission of base station), the UL-SCH uplink shared channel, the UMB Ultra-Mobile Broadband, the UMTS universal mobile telecommunications system, UTRA general land wireless access, the UTRAN universal land radio access web, the VSA VSA, the W-CDMA Wideband Code Division Multiple Access (WCDMA).
It should be noted, described various aspects in conjunction with terminal among the application.Terminal can also be called system, subscriber equipment (user device), subscriber unit, subscriber station, mobile radio station, mobile device, distant station, remote terminal, accesses terminal, user terminal, user agent or subscriber equipment (UE).Subscriber equipment can be that mobile phone, cordless telephone, Session Initiation Protocol phone, wireless local loop (WLL) are stood, PDA, the handheld device with wireless connections ability, the module in the terminal, can append to or be incorporated into card (for example, pcmcia card) or other treatment facility that is connected with radio modem of main equipment.
In addition, the present invention can be embodied as the method, device or the goods that use standard program and/or engineering, with manufacturing software, firmware, hardware or its combination in any, thereby control computer or computation module are realized various aspects of the present invention.The term that uses among the application " goods " is contained can be from the computer program of any computer readable device, carrier or medium access.For example, computer-readable medium can include, but are not limited to: magnetic storage apparatus (for example, hard disk, floppy disk, tape ...), CD are (for example, compact disk (CD), digital versatile disc (DVD) ...), smart card and flash memory device (for example, card, rod, key-type driver ...).Should be understood that in addition, can use carrier wave to carry computer-readable electronic, those data of using as at transmission and receiving voicemail or at the network that inserts such as cellular network the time.Certainly, person of skill in the art will appreciate that, on the protection range or spiritual basis that do not break away from the application's description, can make various modifications said structure.
As used in this application, " assembly ", " module ", " system ", " agreement " and similar term are intended to refer to the entity relevant with computer, i.e. the combination of hardware, hardware and software, software or executory software.For example, but assembly can be but be not limited to be process, processor, object, executable program execution thread, program and/or the computer that moves on the processor.For example, the application and service device that moves on the server can be an assembly.One or more assemblies can be arranged in executory process and/or thread, and an assembly can be arranged in a computer and/or be distributed in two or more computers.
Top description comprises giving an example to one or more embodiment.Certainly, all possible combination of describing assembly or method in order to describe previous embodiment is impossible, but those of ordinary skills should be realized that, can do further combinations and permutations to each embodiment.Therefore, the embodiment that describes among the application is intended to contain spirit and interior all these type of changes, modification and the distortion of protection range that falls into appended claims.In addition, with regard to the term that uses in specification or claims " comprised ", the mode that contains of this speech was similar to term and " comprises ", just " comprised " in the claims as term and explaining as link word.
Claims (29)
1. one kind is used for method of wireless communication, may further comprise the steps:
First group of wireless module formed main cluster, and described main cluster is used for providing the top service function to the subscriber equipment subclass;
Second group of wireless module formed the nested cluster that is associated with described main cluster, and wherein, described nested cluster is used to provide and mails to and from the data transmission of described subscriber equipment subclass.
2. the method for claim 1, further comprising the steps of: another group wireless module is formed and is subjected to the cluster of another nest set group control at least at least.
3. the method for claim 1, described top service function is relevant with scheduling feature.
4. the method for claim 1, described second group of wireless module of forming described first group of wireless module of described main cluster or forming described nested cluster from one group of base station or from described base station associated antennas subclass select.
5. the method for claim 1, further comprising the steps of: as to handle network parameter, described network parameter comprises time parameter, frequency parameter, resource allocation parameters, disturbance regime parameter, signal strength parameter, signal quality parameter, QoS parameter or signal to noise ratio (snr) parameter, and described network parameter is used for determining described nested cluster.
6. the method for claim 1 is further comprising the steps of: the described main cluster of static configuration.
7. method as claimed in claim 6, further comprising the steps of: the described nested cluster of dynamic-configuration.
8. method as claimed in claim 7, further comprising the steps of: as, to come the described nested cluster of dynamic-configuration according to the subscriber equipment that will dispatch or according to the configuration in nested cluster past.
9. the method for claim 1, further comprising the steps of: that described main cluster is consisted of one group of one group of cell site that the sub-district is associated with each website.
10. method as claimed in claim 9, cell site number are 3, and the number of cells of each website is 9.
11. method as claimed in claim 9, cell site number are 7, the number of cells of each website is 21.
12. the method for claim 1 is further comprising the steps of: it is the nested cluster of described subscriber equipment subclass service that appointment is used for during scheduling decision.
13. method as claimed in claim 12 also comprises the cell site of packets of shared data or channel condition information.
14. method as claimed in claim 13, described packet and channel condition information are to share on the back haul link of different districts website in being connected one or more main clusters.
15. the method for claim 1 also comprises the main cluster that is used to limit the subscriber equipment feedback of going to the nest set group subset.
16. a communicator comprises:
Memory, its preservation is used to form the instruction of main cluster and the nested cluster that is associated with described main cluster, wherein, described main cluster provides scheduling feature to the subscriber equipment subclass, and described nested cluster provides and mails to and transmit from the data of described subscriber equipment subclass;
Processor, it carries out described instruction.
17. device as claimed in claim 16 also comprises: form another cluster at least that is subjected to another nest set group control at least.
18. device as claimed in claim 16, described main cluster or described nested cluster from one group of base station or from described base station associated antennas subclass select.
19. device as claimed in claim 16, also comprise network parameter, described network parameter comprises time parameter, frequency parameter, resource allocation parameters, disturbance regime parameter, signal strength parameter, signal quality parameter, QoS parameter or signal to noise ratio (snr) parameter, and described network parameter is used for determining described nested cluster.
20. device as claimed in claim 16 also comprises: the described main cluster of static configuration.
21. device as claimed in claim 20 also comprises: the described nested cluster of dynamic-configuration.
22. device as claimed in claim 16 also comprises: it is the nested cluster of described subscriber equipment subclass service that appointment is used for during scheduling decision.
23. device as claimed in claim 22, described subscriber equipment subclass packets of shared data and channel condition information.
24. device as claimed in claim 23, described packet are to share on the back haul link that is connected the different districts website with channel condition information.
25. device as claimed in claim 16 also comprises the main cluster that is used to limit the subscriber equipment feedback of going to the nest set group subset.
26. a communicator comprises:
Be used to control the module of one group of master's cluster;
Be used to select the module of one group of nested cluster that described one group of master's cluster is responded;
Be used for module to subscriber equipment subclass transmitting scheduling information and data.
27. device as claimed in claim 26 also comprises at least one cluster that is subjected to another nest set group control at least.
28. a computer program comprises:
Computer-readable medium, it comprises the code that is used to manage switching, described code comprises:
Be used to make computer to select the code of one group of master's cluster;
Be used to make one group of Computer Processing to be subjected to the code of the nested cluster of described one group of master's cluster control;
Be used to make computer by first communication channel to subscriber equipment subclass schedule information and pass through
The code that second data channel provides data to transmit to the subscriber equipment subclass.
29. computer program as claimed in claim 28 also comprises: be used to make Computer Processing one set of network parameters so that dynamically determine the code of described nested cluster.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101074A (en) * | 2016-05-31 | 2016-11-09 | 北京大学 | A kind of sacurity dispatching method based on user's classification towards big data platform |
| WO2017193850A1 (en) * | 2016-05-09 | 2017-11-16 | 腾讯科技（深圳）有限公司 | Access scheduling method and device for terminal, and computer storage medium |
| CN108282314A (en) * | 2017-01-06 | 2018-07-13 | 中兴通讯股份有限公司 | Resource indicating method, device, base station and terminal |
| CN109565352A (en) * | 2016-08-12 | 2019-04-02 | 诺基亚通信公司 | Link delay and system action |
| CN109643578A (en) * | 2016-06-01 | 2019-04-16 | 生命科技股份有限公司 | For designing the method and system of the assortment of genes |
| CN113728557A (en) * | 2019-02-20 | 2021-11-30 | 谷歌有限责任公司 | Enhancing downlink performance between user equipment and active coordination set |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9521554B2 (en) * | 2008-08-15 | 2016-12-13 | Qualcomm Incorporated | Adaptive clustering framework in frequency-time for network MIMO systems |
| KR101104965B1 (en) * | 2008-12-19 | 2012-01-12 | 한국전자통신연구원 | Method and Apparatus for scheduling in BaseStation |
| WO2010125794A1 (en) * | 2009-04-27 | 2010-11-04 | パナソニック株式会社 | Wireless communication device and wireless communication method |
| US8948085B2 (en) * | 2010-03-17 | 2015-02-03 | Qualcomm Incorporated | Methods and apparatus for best-effort radio backhaul among cells on unlicensed or shared spectrum |
| US8639256B2 (en) | 2010-05-26 | 2014-01-28 | Qualcomm Incorporated | Adaptive cell clustering in a multi-cluster environment |
| US9288690B2 (en) | 2010-05-26 | 2016-03-15 | Qualcomm Incorporated | Apparatus for clustering cells using neighbor relations |
| EP2445246A1 (en) * | 2010-10-22 | 2012-04-25 | NTT DoCoMo, Inc. | Apparatus and method for determining a core network configuration of a wireless communication system |
| EP2466978A1 (en) | 2010-12-16 | 2012-06-20 | Alcatel Lucent | Mobile network, corresponding access node, processing unit and method for operating the mobile network |
| CN102158310A (en) | 2011-02-15 | 2011-08-17 | 中兴通讯股份有限公司 | Method and device for realizing multi-cell precoding |
| EP2774320A1 (en) | 2011-11-03 | 2014-09-10 | Nokia Solutions and Networks Oy | Multi-cell transmissions |
| US8990209B2 (en) | 2012-09-06 | 2015-03-24 | International Business Machines Corporation | Distributed scalable clustering and community detection |
| US8934904B2 (en) * | 2012-11-30 | 2015-01-13 | Motorola Solutions, Inc. | Method and apparatus for data communication |
| US10560244B2 (en) * | 2013-07-24 | 2020-02-11 | At&T Intellectual Property I, L.P. | System and method for reducing inter-cellsite interference in full-duplex communications |
| US10057835B1 (en) * | 2014-02-12 | 2018-08-21 | Sprint Communications Company L.P. | Micro cell management system and method |
| CN105264922B (en) * | 2014-05-05 | 2019-05-24 | 华为技术有限公司 | User equipment, base station and information method of sending and receiving |
| KR101706629B1 (en) * | 2016-01-25 | 2017-02-16 | 주식회사 이노와이어리스 | power calibration method for MIMO-OFDM transmitter |
| AU2019388921A1 (en) | 2018-11-27 | 2021-06-03 | XCOM Labs, Inc. | Non-coherent cooperative multiple-input multiple-output communications |
| WO2021242574A1 (en) | 2020-05-26 | 2021-12-02 | XCOM Labs, Inc. | Interference-aware beamforming |
| WO2022093988A1 (en) | 2020-10-30 | 2022-05-05 | XCOM Labs, Inc. | Clustering and/or rate selection in multiple-input multiple-output communication systems |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0771127A2 (en) * | 1995-10-03 | 1997-05-02 | Mitsubishi Denki Kabushiki Kaisha | Base station system suitable for microcells |
| US20060014554A1 (en) * | 2004-07-13 | 2006-01-19 | Alcatel | Method for terminal-assisted interference control in a multi-carrier mobile communication system |
| CN1870461A (en) * | 2005-05-24 | 2006-11-29 | 都科摩（北京）通信技术研究中心有限公司 | MIMO system based on random emitting beam formed and its user scheduling method |
| CN1893308A (en) * | 2005-07-06 | 2007-01-10 | 都科摩（北京）通信技术研究中心有限公司 | MIMO telecommunication system and user sheduling method |
| WO2008011149A2 (en) * | 2006-07-20 | 2008-01-24 | Bandspeed, Inc. | Managing wireless base stations using a distributed virtual base station manager |
Family Cites Families (61)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2113750C (en) * | 1993-04-30 | 1999-08-24 | Hamid Ahmadi | A multiaccess scheme for mobile integrated local area networks |
| JPH07298340A (en) * | 1994-03-02 | 1995-11-10 | Fujitsu Ltd | Mobile communication system and mobile station |
| US6002935A (en) | 1997-05-22 | 1999-12-14 | At&T Corp | Wireless communications cellular architecture for improving communications resource allocation |
| US6405039B1 (en) | 1999-04-20 | 2002-06-11 | Ericsson Inc. | Apparatus and methods for allocation of high-penetration services in wireless communications systems |
| JP2001177864A (en) * | 1999-12-15 | 2001-06-29 | Toshiba Corp | Wireless communication system, wireless communication method, and wireless control station |
| JP3458803B2 (en) | 1999-12-27 | 2003-10-20 | 日本電気株式会社 | Mobile radio communication system and line connection control method used therefor |
| US6650900B1 (en) * | 2000-02-29 | 2003-11-18 | Avaya Technology Corp. | Dynamic logical coverage areas for wireless base stations |
| US9107031B2 (en) * | 2000-03-13 | 2015-08-11 | Nokia Technologies Oy | Service provision in a communication system |
| FI20001574A (en) * | 2000-06-30 | 2001-12-31 | Nokia Corp | Resource allocation and service forwarding over a wireless network |
| US7085260B2 (en) | 2000-08-22 | 2006-08-01 | Lucent Technologies Inc. | Internet protocol based wireless call processing |
| EP1368982A1 (en) * | 2001-03-16 | 2003-12-10 | BRITISH TELECOMMUNICATIONS public limited company | Selection of an appropriate network resource node in a cellular telecommunication system |
| US20040117226A1 (en) | 2001-03-30 | 2004-06-17 | Jaana Laiho | Method for configuring a network by defining clusters |
| GB2385491B (en) | 2002-02-15 | 2006-06-21 | Inmarsat Ltd | Carrier allocation |
| KR100604822B1 (en) * | 2003-07-03 | 2006-07-28 | 삼성전자주식회사 | Combined beamforming-diversity wireless fading channel de-modulator using sub-array grouped adaptive array antennas, portable telecommunication receiving system comprising it and method thereof |
| KR100588288B1 (en) * | 2004-02-16 | 2006-06-09 | 주식회사 엘지화학 | Electrode for lithium secondary battery |
| KR100744315B1 (en) | 2004-05-31 | 2007-07-30 | 삼성전자주식회사 | Access point probing method for fast handoff in wireless local area network |
| US7460549B1 (en) * | 2004-06-18 | 2008-12-02 | Honeywell International Inc. | Resource management for ad hoc wireless networks with cluster organizations |
| JP4673703B2 (en) | 2004-09-02 | 2011-04-20 | 三菱電機株式会社 | Route design apparatus and route design method |
| EP1713206A1 (en) | 2005-04-11 | 2006-10-18 | Last Mile Communications/Tivis Limited | A distributed communications network comprising wirelessly linked base stations |
| DE602005004619T2 (en) * | 2005-11-04 | 2009-04-30 | Alcatel Lucent | Allocation of limited power frequencies to improve intercell interference |
| US7565151B2 (en) * | 2006-01-23 | 2009-07-21 | Kyocera Corporation | System and method for adaptive assignment of unique words in a communication system |
| US20080002598A1 (en) | 2006-04-19 | 2008-01-03 | Telsima Corporation | Reducing inter-ss interference |
| EP2025114A1 (en) * | 2006-05-15 | 2009-02-18 | Samsung Electronics Co., Ltd. | Apparatus and method for allocating resources in an orthogonal frequency division multiple access mobile communication system |
| US7590092B2 (en) * | 2006-05-30 | 2009-09-15 | Motorola Inc. | Method and system for inter-technology handoff of a hybrid access terminal |
| US8081698B2 (en) | 2006-06-29 | 2011-12-20 | Qualcomm Incorporated | Method and apparatus for selection mechanism between OFDM-MIMO and LFDM-SIMO |
| US7790975B2 (en) * | 2006-06-30 | 2010-09-07 | Avid Technologies Europe Limited | Synchronizing a musical score with a source of time-based information |
| MX2009001402A (en) * | 2006-08-14 | 2009-02-17 | Ericsson Telefon Ab L M | A method and arrangement for providing location information on a communication terminal. |
| WO2008019706A1 (en) | 2006-08-15 | 2008-02-21 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for scheduling resources and avoiding interference in a multi-cellular wireless communication system |
| EP1903816A1 (en) | 2006-09-22 | 2008-03-26 | Nokia Siemens Networks Gmbh & Co. Kg | Method for operating an access node and access node thereof |
| CN100493261C (en) | 2006-12-29 | 2009-05-27 | 华中科技大学 | Block position managing method based on mixed mobile network |
| US7924734B2 (en) * | 2007-02-05 | 2011-04-12 | Level 3 Communications, Llc | Network configuration optimization |
| KR101002877B1 (en) * | 2007-03-06 | 2010-12-21 | 한국과학기술원 | A method and Apparatus for scheduling Multiple Users In communication |
| US8295231B2 (en) * | 2007-06-28 | 2012-10-23 | Alcatel Lucent | Method of dynamic resource allocations in wireless systems |
| US7894371B2 (en) * | 2007-07-31 | 2011-02-22 | Motorola, Inc. | System and method of resource allocation within a communication system |
| US8265033B2 (en) | 2007-08-13 | 2012-09-11 | Telefonakatiebolaget Lm Ericsson (Publ) | Closed subscriber group cell handover |
| US8594663B2 (en) | 2007-09-24 | 2013-11-26 | Airvana Llc | Selecting embedded cells in wireless networks |
| PL2991402T3 (en) | 2007-11-20 | 2019-03-29 | Interdigital Patent Holdings, Inc. | Method and apparatuses for performing handover |
| US9681454B2 (en) * | 2007-12-06 | 2017-06-13 | Alcatel-Lucent Usa Inc. | Uplink scheduler algorithm for orthogonal division multiple access systems |
| US8351453B2 (en) * | 2007-12-21 | 2013-01-08 | At&T Intellectual Property I, L.P. | Methods and apparatus to allocate shared resources of a high speed packet access channel in a communication network |
| KR100991794B1 (en) * | 2007-12-31 | 2010-11-03 | 엘지전자 주식회사 | Method For Reducing Inter-Cell Interference |
| US8437752B2 (en) | 2008-03-31 | 2013-05-07 | Qualcomm Incorporated | Method and system for facilitating execution of automatic neighbor relation functions |
| US8583119B2 (en) | 2008-04-21 | 2013-11-12 | Qualcomm Incorporated | Method and apparatus for management of automatic neighbor relation function in wireless networks |
| US8594060B2 (en) | 2008-04-22 | 2013-11-26 | Nokia Corporation | Grouping of cells for efficient neighbor cell information distribution |
| US9241276B2 (en) * | 2008-06-17 | 2016-01-19 | Alcatel Lucent | Method for adaptive formation of cell clusters for cellular wireless networks with coordinated transmission and reception |
| US8406171B2 (en) * | 2008-08-01 | 2013-03-26 | Texas Instruments Incorporated | Network MIMO reporting, control signaling and transmission |
| WO2010017101A2 (en) | 2008-08-05 | 2010-02-11 | Interdigital Patent Holdings, Inc. | Method and apparatus for implementing multi-cell cooperation techniques |
| US9521554B2 (en) * | 2008-08-15 | 2016-12-13 | Qualcomm Incorporated | Adaptive clustering framework in frequency-time for network MIMO systems |
| US8315225B2 (en) * | 2008-09-22 | 2012-11-20 | Research In Motion Limited | Aspects to support LTE-A downlink hi-order MIMO |
| CA2742574A1 (en) | 2008-11-03 | 2010-06-03 | Hamidreza Farmanbar | Wireless communication clustering method and system for coordinated multi-point transmission and reception |
| WO2011009486A1 (en) | 2009-07-22 | 2011-01-27 | Nokia Siemens Networks Oy | Method of coordinating the transmission resources in a coordinated multipoint transmission/receiving communication network |
| TWI479924B (en) | 2009-08-02 | 2015-04-01 | Innovative Sonic Corp | Method and apparatus for optimizing radio resource control procedures in wireless communication system |
| US8948028B2 (en) | 2009-10-13 | 2015-02-03 | Qualcomm Incorporated | Reporting of timing information to support downlink data transmission |
| US9055518B2 (en) | 2009-12-18 | 2015-06-09 | Nokia Solutions And Networks Oy | Resource sharing in communications systems |
| US8755816B2 (en) | 2009-12-30 | 2014-06-17 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for position determination in a cellular communications system |
| EP2525504A4 (en) * | 2010-01-13 | 2015-07-22 | Alcatel Lucent | Method and equipment for multiple-input multiple-output (mimo) channels information feedback in multiple cells |
| KR20110093361A (en) | 2010-02-12 | 2011-08-18 | 엘지전자 주식회사 | A feedback method and an apparatus for multiple base stations in a wirless communication system supporting single base station mimo communiation and multiple base stations mimo communication |
| US8639256B2 (en) * | 2010-05-26 | 2014-01-28 | Qualcomm Incorporated | Adaptive cell clustering in a multi-cluster environment |
| US9288690B2 (en) * | 2010-05-26 | 2016-03-15 | Qualcomm Incorporated | Apparatus for clustering cells using neighbor relations |
| US8446872B2 (en) * | 2010-06-18 | 2013-05-21 | Intel Mobile Communications GmbH | Communication terminal, communication device, method for data communication, and method for frequency allocation |
| US8780620B2 (en) * | 2010-09-20 | 2014-07-15 | The Texas A&M University | Information representation and coding for nonvolatile memories |
| US8457642B2 (en) * | 2011-06-08 | 2013-06-04 | Telefonaktiebolaget L M Ericsson (Publ) | Determining a coordinating set of cells for multipoint reception of uplink transmission from a mobile terminal |
-
2009
- 2009-08-13 US US12/541,038 patent/US10028332B2/en active Active
- 2009-08-14 TW TW098127446A patent/TW201021609A/en unknown
- 2009-08-14 WO PCT/US2009/053924 patent/WO2010019904A1/en active Application Filing
- 2009-08-14 CN CN200980131604.7A patent/CN102124813B/en active Active
- 2009-08-14 EP EP09791544.1A patent/EP2319274B1/en active Active
- 2009-08-14 KR KR1020117006033A patent/KR101322343B1/en active IP Right Grant
- 2009-08-14 JP JP2011523201A patent/JP5431480B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0771127A2 (en) * | 1995-10-03 | 1997-05-02 | Mitsubishi Denki Kabushiki Kaisha | Base station system suitable for microcells |
| US20060014554A1 (en) * | 2004-07-13 | 2006-01-19 | Alcatel | Method for terminal-assisted interference control in a multi-carrier mobile communication system |
| CN1870461A (en) * | 2005-05-24 | 2006-11-29 | 都科摩（北京）通信技术研究中心有限公司 | MIMO system based on random emitting beam formed and its user scheduling method |
| CN1893308A (en) * | 2005-07-06 | 2007-01-10 | 都科摩（北京）通信技术研究中心有限公司 | MIMO telecommunication system and user sheduling method |
| WO2008011149A2 (en) * | 2006-07-20 | 2008-01-24 | Bandspeed, Inc. | Managing wireless base stations using a distributed virtual base station manager |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193850A1 (en) * | 2016-05-09 | 2017-11-16 | 腾讯科技（深圳）有限公司 | Access scheduling method and device for terminal, and computer storage medium |
| CN107360202A (en) * | 2016-05-09 | 2017-11-17 | 腾讯科技（深圳）有限公司 | The access scheduling method and device of a kind of terminal |
| US10652360B2 (en) | 2016-05-09 | 2020-05-12 | Tencent Technology (Shenzhen) Company Limited | Access scheduling method and apparatus for terminal, and computer storage medium |
| CN106101074A (en) * | 2016-05-31 | 2016-11-09 | 北京大学 | A kind of sacurity dispatching method based on user's classification towards big data platform |
| CN106101074B (en) * | 2016-05-31 | 2019-05-21 | 北京大学 | A kind of sacurity dispatching method based on user's classification towards big data platform |
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| CN108282314A (en) * | 2017-01-06 | 2018-07-13 | 中兴通讯股份有限公司 | Resource indicating method, device, base station and terminal |
| US11197292B2 (en) | 2017-01-06 | 2021-12-07 | Xi'an Zhongxing New Software Co., Ltd. | Resource indication method and device, base station, and terminal |
| CN108282314B (en) * | 2017-01-06 | 2022-04-29 | 中兴通讯股份有限公司 | Resource indication method, device, base station and terminal |
| CN113728557A (en) * | 2019-02-20 | 2021-11-30 | 谷歌有限责任公司 | Enhancing downlink performance between user equipment and active coordination set |
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| KR101322343B1 (en) | 2013-10-28 |
| KR20110044909A (en) | 2011-05-02 |
| CN102124813B (en) | 2015-12-16 |
| EP2319274A1 (en) | 2011-05-11 |
| TW201021609A (en) | 2010-06-01 |
| US10028332B2 (en) | 2018-07-17 |
| EP2319274B1 (en) | 2017-09-20 |
| US20100041411A1 (en) | 2010-02-18 |
| JP2012500537A (en) | 2012-01-05 |
| WO2010019904A1 (en) | 2010-02-18 |
| JP5431480B2 (en) | 2014-03-05 |
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